EFFECTIVENESS OF TLCD ON VARIOUS STRUCTURAL SYSTEMS

This paper examines the effectiveness of using the TLCD for vibration control of various structural systems under random wind loading. The e ffectiveness is indicated by the percentage reduction in acceleration and displacement of the building. The structural systems include frame , shear wall and frame-shear wall systems. A wide range of building he ights are considered. These buildings are modeled as shear-flexure can tilever beams, taking into account the effects of the higher modes. Th e sensitivity of the TLCD to changes in structural periods (which are assumed to be proportional to the structural heights) and damping rati os is also examined. Unlike commonly used lumped-mass studies, a conti nuous formulation is adopted here which allows for response quantities to be determined along the entire length of the structure. Also the e ffect of varying the damper position on the damper performance can be examined more readily. (C) 1998 Elsevier Science Ltd. All rights reser ved.